Home / 161,720,912.70-242,581,369.05-157,469,384.70

Finding the Fourth Proportional to 161,720,912.70, 242,581,369.05 and 157,469,384.70

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Solution

The fourth proportional to 161,720,912.70, 242,581,369.05 and 157,469,384.70 is: 236,204,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,720,912.70 : 242,581,369.05 = 157,469,384.70 : x
  2. Step 2: Convert to fraction form
    161,720,912.70/242,581,369.05 = 157,469,384.70/x
  3. Step 3: Cross multiply
    161,720,912.70x = 242,581,369.05 × 157,469,384.70
  4. Step 4: Simplify right side
    161,720,912.70x = 38,199,138,923,987,120
  5. Step 5: Solve for x
    x = 38,199,138,923,987,120/161,720,912.70
  6. Step 6: Final answer
    x = 236,204,077.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.